Hi Chris,


On 19 July 2016 at 1:25:21 AM, Chris Vandekerkhove wrote:

Isn't it so that tuners using a needle quickly get more and more error
prone?


There is no intrinsic reason why a needle meter will get more inaccurate
over time. But they are driven by analog electronics, and component vlaues
drift as they age, so the unit as a whole loses accuracy. This is easily
measured in these old Korg tuners. There is nothing wrong with analog
meters for test intruments per se.


Andrew

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